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Atmospheric Gravity Waves revisited with the EISCAT radar

It is known that AGWs strongly interact with Traveling Ionospheric Disturbancescalled TIDs (e.g. Kirchengast et al., 1996). Vlasov et al., 2011 presented a statisticalstudy for AGWs-TIDs events with the EISCAT dataset. Our study is follow-up study of this one, and our goals are to discuss statistically AGWs-TIDs features such as the amplitude, the dominant frequency, and frequency of the events with outer factors like magnetic activities. We succeeded to project AGWs-TIDs features with the Butterworth filter for the dataset on 6 September 1988, on 11 November 2018, and on 2 March 2022. However, in our projection process, we found several problems worth to discuss further. In this report, we show you the examples of the projections, and share to you our difficulties and problem as well as our possible solutions for these matters.

Identiferoai:union.ndltd.org:UPSALLA1/oai:DiVA.org:uu-517204
Date January 2023
CreatorsHirabayashi, Tatsuya
PublisherUppsala universitet, Institutet för rymdfysik, Uppsalaavdelningen, Uppsala universitet, Institutionen för fysik och astronomi
Source SetsDiVA Archive at Upsalla University
LanguageEnglish
Detected LanguageEnglish
TypeStudent thesis, info:eu-repo/semantics/bachelorThesis, text
Formatapplication/pdf
Rightsinfo:eu-repo/semantics/openAccess
RelationFYSAST ; FYSPROJ1327

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